How can you secure/encrypt your querystring in asp.net?

Question

I was wondering how you could encrypt/decrypt your querystring in a simple asp.net page? some values need to be passed between different pages but the querystring cannot be chan

Answer 1

I needed to do this and just for reference this was my chosen solution.

Use a HTTPModule to encrypt and decrypt. Then just put the module in the web.config.

Found it here: https://madskristensen.net/blog/httpmodule-for-query-string-encryption/

From the article:

What we need is an HttpModule that can turn the encrypted query string into a normal readable one, so that we can still use our old logic like Request.QueryString["user"]. In other words, we want the user to see this

?enc=VXzal017xHwKKPolDWQJoLACDqQ0fE//wGkgvRTdG/GgXIBDd1

while your code sees this

?user=123&account=456.

Sample code in the article has the module you would add.